Robert Langdon, fictional hero of the DaVinci Code books.
From wikipedia: Robert Langdon, born in Exeter, New Hampshire, United States, is described as looking like "Harrison Ford in Harris tweed", with his standard attire being a turtleneck, Harris Tweed jacket, khakis, and collegiate cordovan loafers, which he wears to all instances, from lectures to social events. A frequently referred to accessory is his Mickey Mouse watch, a gift from his parents on his ninth birthday. He drives an automatic Saab 900S. Langdon was a diver at Phillips Exeter Academy in prep school and played water polo at Princeton University where he went for college.